[PATCH] D34077: DAGCombine: Combine BUILD_VECTOR to TRUNCATE

[Zvi Rackover via Phabricator via llvm-commits]

zvi updated this revision to Diff 104100.
zvi added a comment.

Following Elena's suggestion, pulling the profitability check out from reduceBuildVecToTrunc().


https://reviews.llvm.org/D34077

Files:
  include/llvm/Target/TargetLowering.h
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  lib/Target/X86/X86ISelLowering.h
  test/CodeGen/X86/shuffle-vs-trunc-256.ll
  test/CodeGen/X86/shuffle-vs-trunc-512.ll

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